Means for adjusting vacuum cleaner nozzles



A. A. WARNER.

MEANS FOR vADJUSTiNG VACUUM CLEANER NOZZLES.

APPLICATION FILED APR. 15, 1921.

PatentedSept. 19, 1922.

' positive in character.

Patented Sept. 19, 1922.

UNITED STATES PATENT OFFICE.

.ALONZO A. WARNER, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO LANDERS,

FRARY & CLARK, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CON- NECTI CUT.

MEANS FOR ADJUSTING VACUUM CLEANER NOZZLES.

Application filed April 15, 1921.

To all whomit may concern:

Be it known that I, ALoNzo A. IVARNER, a citizen or the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Means for Adjustin Vacuum-Cleaner Nozzles,'of which the following is a full, clear, and exact descrip tion.

My invention relates to a vacuum cleaner apparatus and has for its object to provide a simple and eflicient means for var ing the distance of the mouth of the nozzle r0111 the surface to be cleaned.

By reason of the different surfaces over which a vacuum cleaner nozzle travels and the different characters of dirt which must be disposed of, it is necessary that the machine be provided with a suitable means for adjusting the nozzle to place the mouth of the nozzle in the most efiicient position to remove dirt from floors, carpets, rugs or other surfaces to be cleaned. This adjustment must be quickly made and must be The purpose of my invention is to accomplish these results.

The following is a description of an embodiment of my invention reference being had to the accompanying drawings, in which Fig. 1 shows a side elevation of a vacuum cleaner embodying my invention;

Fig. 2 is an end elevation of a portion of the same and of my adjusting means on an enlarged scale;

Fig. 3 is a section on the line 3-3, Fig. 2;

gig. 4 is a detail of the adjusting screw, an

Fig. 5 shows the adjusting screw together with a pivotally mounted nut and friction spring.

Referring more particularly to the drawings 1 is a combined fan and motor casing having at its forward end two wheels, 2 2 located at the sides thereof and between the casing and the nozzle 3. The mouth 4 of the nozzle is adjacent to the surface to be cleaned and as above stated it is necessary to adjust the distance between it and said surface to meet varying conditions. 5 is the handle of the machine pivoted to the casing in the ordinary manner and 6 is the coupling for attaching the dust bag orhos as desired.

Serial N 0. 461,469.

The casing l is provided with a rearwardly extending lug 7 integral therewith.

The rear end of the lug 7 is formed with a vertical slot or recess forming two arms 8 one on each side of the adjusting screw hereafter described. Pivoted to the projection 7 at the point 9 is a yoke 10, preferably struck up of sheet metal. It is provided with two arms 10' between which is mounted a wheel 11. The yoke is formed with a bridgin plate 12 connecting the arms 10. Through this bridging plate passes a screw 13 swiveled therein and provided with a shoulder 14 and a knurled knob 15. The lower end of this screw 13 passes through a threaded nut 16 pivotally mounted in the arms 8 so as to turn therein. Between this nut 16 and the shoulder 14 is a spring 17 which acts as a friction to hold the screw 13 in adjusted position. 18 is a stop shoulder for limiting the movement of the yoke 10 when engaged by the bridging plate 12.

By the means above described a simple and eflicient device is secured for adjusting the mouth of the nozzle 3. By adjusting the position of the yoke 10 and wheel 11 through the use of the screw 13 the nozzle will be held in any position in which it is placed, the screw being held from turning by the friction of the spring 17 As will be evident to those skilled in the art, my invention permits of various modifications without departing from the spirit thereof or the scope of the appended claims.

What I claim is:

1. In a vacuum cleaner, the combination of a casing having supporting wheels adjacent to its forward end and a lug at its rear end, an arm pivoted to said lug, and means for varying the angular position of said arm with relation tosaid lug and for preventing pivotal movement of the arm in either direction when adjusted, comprising a nut pivotally mounted on one of said parts, and an adjusting screw extending loosely through an aperture in the other part and screwthreadedinto the nut.

2. In a vacuum cleaner the combination of a casing having a plurality of supporting wheels adjacent to its front end, a lug rearwardly projecting from said casing and provided with a slot, a pivoted nut in said lug and extending across said slot transversely to the axis of said lug, an adjusting arm pivoted to said lug and having a bridging portion and an adjusting screw passing through said bridging portion andinto said pivoted nut.

3. In a vacuum cleaner the combination of a casing having a plurality of supporting Wheels adjacent to its front end, a lug rear- Wardly projecting from the rear of said casing and provided with a vertical slot, a

masses pivoted nut passing across said slot trans- 1o pivoted nut and a spring between said nut 15 and the shoulder upon said adjusting screw.

ALUNZO A. WARNER. 

